调整大小和旋转图像-Codeigniter

Question

我正在尝试调整图像大小并旋转图像。

目前，它只是调整图像的大小，而不旋转它。

这是代码，希望有人有解决方案:-)

$config['image_library']   = 'gd2';
$config['source_image']    = $data['full_path'];
$config['new_image']       = $data['file_path'].'thumbs/'.$data['file_name'];
$config['create_thumb']    = FALSE;
$config['maintain_ratio']  = TRUE;
$config['width']           = 235;
$config['height']          = 235;

$this->load->library('image_lib', $config); 

$this->image_lib->resize();

$this->image_lib->clear();

$config['create_thumb'] = FALSE; //No thumbnail
$config['source_image'] = $data['file_path'].'thumbs/'.$data['file_name']; //full path for the source image
$config['rotation_angle'] = '180';// 

$this->load->library('image_lib',$config);

//Rotate the image
$this->image_lib->rotate();

Answer 1

后

$this->image_lib->clear();

加：

$config = array()重新初始化您的配置数组。

Answer 2

清除配置后，不要重新加载库，请重新初始化它：

$this->image_lib->clear();
$config=array();
$config['image_library']   = 'gd2';
$config['source_image'] = $data['file_path'].'thumbs/'.$data['file_name'];
$config['rotation_angle'] = '180';
$this->image_lib->initialize($config); // reinitialize it instead of reloading
$this->image_lib->rotate();

这是最终对我有用的唯一解决方案。 仅重新初始化$ config在CodeIgniter 2.2.0中不起作用。

Answer 3

确保在重新发送$ config之前重新创建它。

否则，您可能最终会发送不想发送的值。

此刻rotate（）得到一个$ config，如下所示：

$config['image_library']   = 'gd2';
$config['new_image']       = $data['file_path'].'thumbs/'.$data['file_name'];
$config['maintain_ratio']  = TRUE;
$config['width']           = 235;
$config['height']          = 235;
$config['create_thumb'] = FALSE; //No thumbnail
$config['source_image'] = $data['file_path'].'thumbs/'.$data['file_name']; //full path for the source image
$config['rotation_angle'] = '180'; //